Red Bases of Fins/Frayed, Bulging Eye, Blindness - Septicemia?

[WARCRAFT]

Look up the effects of low pH on nitrification process. (New tank syndrome)

Especially if you are getting zero nitrate readings.

Hi, I did moved him to a separate tank and medicated for 10 days with Kanaplus (kanamycin) now those redness had gone from fin bases but he didn't had the red stripe on his upper jaws but again it has appeared
Is it due to bad water conditions or can a faulty (power leak) can cause this?